package com.edu.gcu.core.domain;

import com.edu.gcu.constant.HttpStatusConstants;
import lombok.Data;

import java.io.Serial;
import java.io.Serializable;

/**
 * 响应信息主体
 *
 * @author luomang
 */
@Data
public class Result<T> implements Serializable {
    @Serial
    private static final long serialVersionUID = 1L;

    /**
     * 成功
     */
    public static final int SUCCESS = HttpStatusConstants.SUCCESS;

    /**
     * 失败
     */
    public static final int FAIL = HttpStatusConstants.ERROR;

    private int code;

    private String msg;

    private T data;

    public static <T> Result<T> ok() {
        return restResult(null, SUCCESS, "操作成功");
    }

    public static <T> Result<T> ok(T data) {
        return restResult(data, SUCCESS, "操作成功");
    }

    public static <T> Result<T> ok(T data, String msg) {
        return restResult(data, SUCCESS, msg);
    }

    public static <T> Result<T> fail() {
        return restResult(null, FAIL, "操作失败");
    }

    public static <T> Result<T> fail(String msg) {
        return restResult(null, FAIL, msg);
    }

    public static <T> Result<T> fail(T data) {
        return restResult(data, FAIL, "操作失败");
    }

    public static <T> Result<T> fail(T data, String msg) {
        return restResult(data, FAIL, msg);
    }

    public static <T> Result<T> fail(int code, String msg) {
        return restResult(null, code, msg);
    }

    private static <T> Result<T> restResult(T data, int code, String msg) {
        Result<T> apiResult = new Result<>();
        apiResult.setCode(code);
        apiResult.setData(data);
        apiResult.setMsg(msg);
        return apiResult;
    }

    public static <T> Boolean isError(Result<T> ret) {
        return !isSuccess(ret);
    }

    public static <T> Boolean isSuccess(Result<T> ret) {
        return Result.SUCCESS == ret.getCode();
    }
}
